From 41b975461e64f6012179a6cabf747aa750fed4d3 Mon Sep 17 00:00:00 2001
From: Mattijn van Hoek <mattijn@gmail.com>
Date: Wed, 24 Sep 2025 16:45:07 +0200
Subject: [PATCH 1/3] include py3.14rc3

---
 .github/workflows/build.yml | 2 +-
 pyproject.toml              | 4 ++--
 uv.lock                     | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f1cfd1e91..cf9c8605e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14.0-rc.3"]
         jsonschema-version: ["3.0", "latest"]
     name: py ${{ matrix.python-version }} js ${{ matrix.jsonschema-version }}
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index e32199ea4..efa9dc5aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ build-backend = "hatchling.build"
 name = "altair"
 authors = [{ name = "Vega-Altair Contributors" }]
 dependencies = [
-    "typing_extensions>=4.10.0; python_version<\"3.14\"",
+    "typing_extensions>=4.10.0; python_version<\"3.15\"",
     "jinja2",
     # If you update the minimum required jsonschema version, also update it in build.yml
     "jsonschema>=3.0",
@@ -128,7 +128,7 @@ doc     = { features = ["all", "dev", "doc"] }
 [tool.hatch.envs.hatch-test]
 # https://hatch.pypa.io/latest/tutorials/testing/overview/
 features = ["all", "dev", "doc"]
-matrix   = [{ python = ["3.9", "3.10", "3.11", "3.12", "3.13"] }]
+matrix   = [{ python = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14.0-rc.3"] }]
 
 [tool.ruff]
 extend-exclude = [
diff --git a/uv.lock b/uv.lock
index 86fbfbb2d..a7f77280d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -54,7 +54,7 @@ dependencies = [
     { name = "jsonschema" },
     { name = "narwhals" },
     { name = "packaging" },
-    { name = "typing-extensions", marker = "python_full_version < '3.14'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.15'" },
 ]
 
 [package.optional-dependencies]
@@ -168,7 +168,7 @@ requires-dist = [
     { name = "tomli", marker = "extra == 'dev'", specifier = ">=2.2.1" },
     { name = "types-jsonschema", marker = "extra == 'dev'" },
     { name = "types-setuptools", marker = "extra == 'dev'" },
-    { name = "typing-extensions", marker = "python_full_version < '3.14'", specifier = ">=4.10.0" },
+    { name = "typing-extensions", marker = "python_full_version < '3.15'", specifier = ">=4.10.0" },
     { name = "vega-datasets", marker = "extra == 'all'", specifier = ">=0.9.0" },
     { name = "vegafusion", extras = ["embed"], marker = "extra == 'all'", specifier = ">=1.6.6" },
     { name = "vl-convert-python", marker = "extra == 'all'", specifier = ">=1.8.0" },

From 41084fbbace754c126221de2c59a734ac7678cce Mon Sep 17 00:00:00 2001
From: Mattijn van Hoek <mattijn@gmail.com>
Date: Sun, 26 Oct 2025 17:05:21 +0100
Subject: [PATCH 2/3] Update build.yml

Co-authored-by: Christian Clauss <cclauss@me.com>
---
 .github/workflows/build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cf9c8605e..77e7f550f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14.0-rc.3"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
         jsonschema-version: ["3.0", "latest"]
     name: py ${{ matrix.python-version }} js ${{ matrix.jsonschema-version }}
     steps:

From db1b02b2d54a5d4395e24e72fd2ae439f1ccbc72 Mon Sep 17 00:00:00 2001
From: Mattijn van Hoek <mattijn@gmail.com>
Date: Sun, 26 Oct 2025 17:06:08 +0100
Subject: [PATCH 3/3] Update pyproject.toml

Co-authored-by: Christian Clauss <cclauss@me.com>
---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index efa9dc5aa..5ff4247b2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -128,7 +128,7 @@ doc     = { features = ["all", "dev", "doc"] }
 [tool.hatch.envs.hatch-test]
 # https://hatch.pypa.io/latest/tutorials/testing/overview/
 features = ["all", "dev", "doc"]
-matrix   = [{ python = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14.0-rc.3"] }]
+matrix   = [{ python = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"] }]
 
 [tool.ruff]
 extend-exclude = [